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ddk: 3.17-rc1

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git-svn-id: svn://kolibrios.org@5056 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
2014-08-23 10:29:27 +00:00
parent 144b0c94b0
commit 0ede580d2f
79 changed files with 6316 additions and 2130 deletions
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26
drivers/include/linux/bitops.h
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@@ -4,12 +4,23 @@
#ifdef __KERNEL__
#define BIT(nr) (1UL << (nr))
#define BIT_ULL(nr) (1ULL << (nr))
#define BIT_MASK(nr) (1UL << ((nr) % BITS_PER_LONG))
#define BIT_WORD(nr) ((nr) / BITS_PER_LONG)
#define BIT_ULL_MASK(nr) (1ULL << ((nr) % BITS_PER_LONG_LONG))
#define BIT_ULL_WORD(nr) ((nr) / BITS_PER_LONG_LONG)
#define BITS_PER_BYTE 8
#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
#endif
/*
* Create a contiguous bitmask starting at bit position @l and ending at
* position @h. For example
* GENMASK_ULL(39, 21) gives us the 64bit vector 0x000000ffffe00000.
*/
#define GENMASK(h, l) (((U32_C(1) << ((h) - (l) + 1)) - 1) << (l))
#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))
extern unsigned int __sw_hweight8(unsigned int w);
extern unsigned int __sw_hweight16(unsigned int w);
extern unsigned int __sw_hweight32(unsigned int w);
@@ -185,6 +196,21 @@ static inline unsigned long __ffs64(u64 word)
#ifdef __KERNEL__
#ifndef set_mask_bits
#define set_mask_bits(ptr, _mask, _bits) \
({ \
const typeof(*ptr) mask = (_mask), bits = (_bits); \
typeof(*ptr) old, new; \
\
do { \
old = ACCESS_ONCE(*ptr); \
new = (old & ~mask) | bits; \
} while (cmpxchg(ptr, old, new) != old); \
\
new; \
})
#endif
#ifndef find_last_bit
/**
* find_last_bit - find the last set bit in a memory region